ECL Western troubles

Just to let you know, I have had similar problems, but more so with the
Pierce Supersignal than ECL. I have no idea why they don't work some of
the time...one day good, the next bad. I did discover that using glass
for antibody incubations is bad...I guess the Ab stick to the glass. I
have tried many alterations in the technique, and it all boils down to
one thing...gremlins.
Mike